title: Human dependence on tobacco and opioids: common factors.
mesh_terms: D003216:Conditioning, Operant; D004361:Drug Tolerance; D005247:Feeding Behavior; D006801:Humans; D009292:Narcotic Antagonists / Q000494:pharmacology; D009294:Narcotics / Q000008:administration & dosage; D009538:Nicotine / Q000037:antagonists & inhibitors; D009293:Opioid-Related Disorders / Q000523:psychology; D010551:Personality; D012054:Reinforcement, Psychology; D012646:Self Administration; D012907:Smoking; D012932:Social Facilitation; D013375:Substance Withdrawal Syndrome / Q000503:physiopathology; D014029:Tobacco Use Disorder / Q000523:psychology
chemical_list: D009292:Narcotic Antagonists; D009294:Narcotics; D009538:Nicotine